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r+r+17=109
We simplify the equation to the form, which is simple to understand
r+r+17=109
We move all terms containing r to the left and all other terms to the right.
+1r+1r=+109-17
We simplify left and right side of the equation.
+2r=+92
We divide both sides of the equation by 2 to get r.
r=46
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